Installed on a 2024 Polaris Kahos 9R 155
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Combine whisper-quiet trail manners with maximum 2-stroke power gains and ultra-lightweight titanium construction for your Polaris! The RPM N.A. Q-Muf is a high-performing, free-flowing, mechanically chambered quiet muffler engineered specifically for Naturally Aspirated (N.A.) Polaris 650, 850, and 9R Patriot engine platforms across AXYS and Matryx chassis models. Only slightly louder than factory sound levels at idle, it delivers massive gains in exhaust velocity, throttle responsiveness, and weight savings.
The secret to the Q-Muf's performance lies in its intelligent internal acoustic architecture. At low RPM and idle, exhaust gases flow through a series of precision pass-through baffles and mechanical chambers to deliver a deep, whisper-quiet sound signature. Under Wide-Open Throttle (WOT), exhaust flow loads the primary chambers and automatically overflows into pass-through channels—allowing exhaust gases to vent freely without power loss, restriction, or backpressure spikes.
Constructed entirely from 100% Titanium with fully welded internals, the Q-Muf weighs in at an astonishing 4.4 lbs total, shedding 11.4 lbs off the front chassis compared to the stock muffler. The uniquely designed oval-domed top and bottom muffler body eliminates thermal hot spots and dead zones, ensuring smooth exhaust scavenging. It features an integrated bottom titanium snow plate to block fumes and packed snow from entering the chassis tunnel when submerged in deep powder, as well as an ultra-tough dual-wall titanium exit tip built to withstand hard impacts from rocks and tree stumps.
Horsepower Gain: +2 to +4 HP Increase
Total System Weight: 4.4 lbs
Total Weight Savings: Sheds 11.4 lbs compared to the heavy stock muffler
Material & Construction: Full Titanium Structure with Fully Welded Internals
Sound Level Profile: Slightly louder than factory at idle; free-flowing and controlled under WOT
Exit Tip Construction: Heavy-Duty Dual-Wall Titanium
Warranty: Backed by RPM's 3-Year Manufacturer Warranty
ECU Tuning Required: None (Direct drop-in and go)
Smart Mechanical Chambered Design: Transitions seamlessly between whisper-quiet baffled idling and high-CFM free-flowing exhaust pathways under full throttle.
Sheds 11.4 lbs of Front-End Weight: Extremely lightweight 4.4 lb titanium build improves front-end agility, side-hilling control, and deep powder flotation.
2–4 HP Performance Increase: Maximizes exhaust gas velocity to improve power delivery and deliver instant throttle response in technical terrain.
Integrated Bottom Snow Plate: Built-in titanium plate seals the belly pan to keep snow and exhaust fumes out of the tunnel when submerged in deep snow.
Heavy-Duty Dual-Wall Titanium Tip: Protrudes further than competitor mufflers for clean exhaust deflection while shielding the outlet from rock and stump impacts.
Oval Domed Muffler Body: Prevents thermal hot spots and exhaust fume dead zones for maximum gas velocity and longevity.
Over-Built Mounting Brackets: Extra-duty reinforced titanium mounts prevent bracket fatigue and failure under severe mountain riding abuse.
100% Direct Bolt-On Setup: Uses original factory mounting points and spring locations with zero body cutting or ECU re-flashing required.
(1) RPM SXS Titanium N.A. Q-Muf Quiet Mechanical Chambered Muffler Assembly
(1) Integrated Bottom Titanium Snow Plate
(1) Complete Set of Stainless Steel Mounting Springs & Hardware
Direct bolt-on replacement for Naturally Aspirated (N.A.) Patriot 650, 850, and 9R engine platforms across AXYS and Matryx chassis models:
Polaris 900R / 9R Models (Matryx Chassis): 2022–2026 (All Models & Trims)
Polaris 850 Models (AXYS & Matryx Chassis): 2019–2026 (PRO RMK, Khaos, SKS, Rush, Switchback Assault, Pro-S, XCR, Indy XC, Indy VR1)
Polaris 650 Models (Matryx Chassis): 2021–2026 (Indy XC, Indy VR1, Switchback Assault, Voyageur)
All orders typically ship within 2-4 business days of order being placed. Weekends, holidays, and weather may slow fulfillment down on order processing. Unless otherwise noted, backordered items will ship according to their estimated shipping times.
Overall rating: 5.0 / 5 from 25 reviews.
Installed on a 2024 Polaris Kahos 9R 155
Kevin M. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Super clean and very high quality, weight reduction noticeable, makes the 9R sound like a true mod sled! Highly recommended.
Sebastian J. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Very good Product and excellent quality!!!
Jaime A. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Very high quality. Super light, nice exhaust tone. Just a tad louder than stock.
Darrin K. 5/5 Verified
Love how light it is, sounds amazing not to loud. Quiet and idle, but sounds amazing when pinned.
Jacob K. 5/5 Verified
Awesome fitment, sound is exactly what i was looking for! Awesome muffler
Rod H. 5/5 Verified
Fits and sounds great
Ryan I. 5/5 Verified
Easy install - very lightweight- and add 4 hp what else is there to say
Hud C. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Best customer service and fast
Jason G. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
I love the way it looks and the way it sounds beautiful piece of art
John W. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Rpm was great to deal with and got me the correct exhaust to work perfect with my Polaris XCR 850 snowmobile
Andy F. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Easy to install, perfect fit, sounds great
Jeff S. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Sounds great & looks good too!
Travis H. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Was easy to put in and fit like a glove, very nice product
Cory J. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
The product was well packaged and shipped fast. Quality seems great. Not to loud and has a nice sound.
Jan Terje N. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Fast shipping, easy install, crisp sound, but not loud. As advertised.
Andrew M. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Great product
Cory D. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Great company, staff and the muffler is off the charts awesome. Shipping was quick and they have the packaging dialed in with super protection. Good price for the whole deal too.
Karl K. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Excellent craftsmanship, the welds are superior and the performance and weight reduction are off the charts! Well worth the money.
Karl K. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Sounds great, super lite, and easy to install.
Aaron H. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Fast shipping, great service. Thanks for not only doing your job but doing it well !!!!!
Jason L. 5/5 Verified
RPM Polaris RMK 9R / 850 NA Titanium Q-Muf Chambered Muffler
Fastest shipping I've ever seen. Looks good too
Jason G. 5/5 Verified
Looks great, nice at idle and sounds crisp when you rip....
James T. 5/5 Verified
Super light, not louder than stock
Ben M. 5/5 Verified
After a test ride on it, I decided to keep this over a diamond S. Was a lot quieter and felt plenty responsive. You won’t be disappointed.
Allan L. 5/5 Verified
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